1. Enter the first equation into Y1.
2. Enter the second equation into
Y2.
3. HitGRAPH.

4.Use theINTERSECToption to find
where the two graphs intersect (the answer).2nd TRACE (CALC) #5 intersectMove spider close to the
intersection.HitENTER3 times.

5. Answer:
x
= 2.6 and y = 3.8

2.

Solve
the system: x - 2y = 14
and x + 3y = 9

The graphing calculator will only accept
entries that start with y = , so we need
to solve these equations for y =.
1. Enter the first equation into Y1.
2. Enter the second equation into
Y2.
3. HitGRAPH. The graphs appear to intersect OFF
the window. We need MORE x-values
to the right hand side of the graph. Go toWINDOW. Increase the size of Xmax. Hit
GRAPH.

4.Use theINTERSECToption to find
where the two graphs intersect (the answer).2nd TRACE (CALC) #5 intersectMove spider close to the
intersection.HitENTER3 times.

5. Answer:
x
= 12 and y = -1

Oops!! They don't cross
in the window.

Better! Xmax was
increased to 20.

3.

Solve
linear quadratic system: y = x2
- 4x - 2 and y =
x - 2

1. Enter the first equation into Y1.
2. Enter the second equation into
Y2.
3. HitGRAPH.

4.Use theINTERSECToption
twice to find the
two locations where the graphs intersect (the
answers).2nd TRACE (CALC) #5 intersectMove spider close to the
intersection.HitENTER3 times.